Cortana is a Windows phone virtual assistant that's predicting every NFL game with an algorithm from Bing Predicts. Bing started predicting sports results at the World Cup — where it correctly picked 15 of the tournament's final 16 games.

The algorithm hasn't been as successful picking NFL games, but it's still going to finish the season with a respectable record. Nate Silver's ELO model is 165-75 (68.7%) through 16 weeks. Las Vegas betting favorites are 156-80-4 (65.8%). Cortana picks games straight up, not against the point spread.

In the final week of the regular season, the Bing Predicts algorithm can potentially crack 66% for the season and beat out the Vegas favorites straight up.